Adding ratpack module (#1374)

* adding ratpack module

* adding pom.xml

ratpack/build.gradle

@@ -0,0 +1,32 @@
+buildscript {
+  repositories {
+    jcenter()
+  }
+  dependencies {
+    classpath "io.ratpack:ratpack-gradle:1.4.5"
+  }
+}
+
+if (!JavaVersion.current().java8Compatible) {
+  throw new IllegalStateException("Must be built with Java 8 or higher")
+}
+
+apply plugin: "io.ratpack.ratpack-java"
+apply plugin: 'java'
+
+repositories {
+  jcenter()
+}
+
+dependencies {
+  testCompile 'junit:junit:4.11'
+  runtime "org.slf4j:slf4j-simple:1.7.21"
+}
+
+test {
+    testLogging {
+        events 'started', 'passed'
+    }
+}
+
+mainClassName = "com.baeldung.Application"

ratpack/pom.xml

@@ -0,0 +1,36 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.baeldung</groupId>
+  <artifactId>ratpack</artifactId>
+  <packaging>jar</packaging>
+  <version>1.0-SNAPSHOT</version>
+  <name>ratpack</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	<maven.compiler.source>1.8</maven.compiler.source>
+	<maven.compiler.target>1.8</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+	<dependency>
+	    <groupId>io.ratpack</groupId>
+	    <artifactId>ratpack-core</artifactId>
+	    <version>1.4.5</version>
+	</dependency>
+	<dependency>
+	    <groupId>io.ratpack</groupId>
+	    <artifactId>ratpack-test</artifactId>
+	    <version>1.4.5</version>
+	</dependency>
+	<dependency>
+	    <groupId>junit</groupId>
+	    <artifactId>junit</artifactId>
+	    <version>4.12</version>
+	    <scope>test</scope>
+	</dependency>
+  </dependencies>
+
+</project>

ratpack/src/main/java/com/baeldung/Application.java

@@ -0,0 +1,22 @@
+package com.baeldung;
+
+import ratpack.http.MutableHeaders;
+import ratpack.server.RatpackServer;
+
+public class Application {
+
+	public static void main(String... args) throws Exception {
+		RatpackServer.start(server -> server.handlers(chain -> chain.all(ctx -> {
+			MutableHeaders headers = ctx.getResponse().getHeaders();
+			headers.set("Access-Control-Allow-Origin", "*");
+			headers.set("Accept-Language", "en-us");
+			headers.set("Accept-Charset", "UTF-8");
+			ctx.next();
+		})
+		.get(ctx -> ctx.render("Welcome to baeldung ratpack!!!"))
+		.get(":name", ctx -> ctx.render("Hello " + ctx.getPathTokens().get("name") + "!!!"))
+		.post(":amount", ctx -> ctx.render(" Amount $" + ctx.getPathTokens().get("amount") + " added successfully !!!"))
+		));
+	}
+
+}

ratpack/src/test/java/com/baeldung/ApplicationTest.java

@@ -0,0 +1,31 @@
+package com.baeldung;
+
+import org.junit.After;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+import ratpack.test.MainClassApplicationUnderTest;
+
+import static org.junit.Assert.assertEquals;
+
+@RunWith(JUnit4.class)
+public class ApplicationTest {
+
+	MainClassApplicationUnderTest appUnderTest = new MainClassApplicationUnderTest(Application.class);
+
+	@Test
+	public void givenDefaultUrl_getStaticText() {
+		assertEquals("Welcome to baeldung ratpack!!!", appUnderTest.getHttpClient().getText("/"));
+	}
+	
+	@Test
+	public void givenDynamicUrl_getDynamicText() {
+		assertEquals("Hello dummybot!!!", appUnderTest.getHttpClient().getText("/dummybot"));
+	}
+	
+	@After
+	public void shutdown() {
+		appUnderTest.close();
+	}
+
+}